9e76561f6a
Use pr_info() instead of the old printk to prefix the component where things are coming from. With this readers will know exactly where the message is coming from. We use pr_* helpers but define pr_fmt to the empty string for easier grepping for those error messages. We leave the users of dprintk() in place, this will print only when the debugpat kernel parameter is enabled. We want to leave those enabled as a debug feature, but also make them use the same prefix. Signed-off-by: Luis R. Rodriguez <mcgrof@suse.com> [ Kill pr_fmt. ] Signed-off-by: Borislav Petkov <bp@suse.de> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Andy Walls <awalls@md.metrocast.net> Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Dave Airlie <airlied@redhat.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: Doug Ledford <dledford@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Juergen Gross <jgross@suse.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Michael S. Tsirkin <mst@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: cocci@systeme.lip6.fr Cc: plagnioj@jcrosoft.com Cc: tomi.valkeinen@ti.com Link: http://lkml.kernel.org/r/1430425520-22275-2-git-send-email-mcgrof@do-not-panic.com Link: http://lkml.kernel.org/r/1432628901-18044-9-git-send-email-bp@alien8.de Signed-off-by: Ingo Molnar <mingo@kernel.org>
49 lines
1.4 KiB
C
49 lines
1.4 KiB
C
#ifndef __PAT_INTERNAL_H_
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#define __PAT_INTERNAL_H_
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extern int pat_debug_enable;
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#define dprintk(fmt, arg...) \
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do { if (pat_debug_enable) pr_info("x86/PAT: " fmt, ##arg); } while (0)
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struct memtype {
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u64 start;
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u64 end;
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u64 subtree_max_end;
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enum page_cache_mode type;
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struct rb_node rb;
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};
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static inline char *cattr_name(enum page_cache_mode pcm)
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{
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switch (pcm) {
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case _PAGE_CACHE_MODE_UC: return "uncached";
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case _PAGE_CACHE_MODE_UC_MINUS: return "uncached-minus";
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case _PAGE_CACHE_MODE_WB: return "write-back";
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case _PAGE_CACHE_MODE_WC: return "write-combining";
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case _PAGE_CACHE_MODE_WT: return "write-through";
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case _PAGE_CACHE_MODE_WP: return "write-protected";
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default: return "broken";
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}
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}
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#ifdef CONFIG_X86_PAT
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extern int rbt_memtype_check_insert(struct memtype *new,
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enum page_cache_mode *new_type);
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extern struct memtype *rbt_memtype_erase(u64 start, u64 end);
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extern struct memtype *rbt_memtype_lookup(u64 addr);
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extern int rbt_memtype_copy_nth_element(struct memtype *out, loff_t pos);
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#else
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static inline int rbt_memtype_check_insert(struct memtype *new,
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enum page_cache_mode *new_type)
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{ return 0; }
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static inline struct memtype *rbt_memtype_erase(u64 start, u64 end)
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{ return NULL; }
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static inline struct memtype *rbt_memtype_lookup(u64 addr)
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{ return NULL; }
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static inline int rbt_memtype_copy_nth_element(struct memtype *out, loff_t pos)
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{ return 0; }
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#endif
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#endif /* __PAT_INTERNAL_H_ */
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